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Rocky Mountain spotted fever

(Encyclopedia)Rocky Mountain spotted fever, infectious disease caused by a rickettsia. The bacterium is harbored by wild rodents and other animals and is carried by infected ticks of several species that attach the...

Riding Mountain National Park

(Encyclopedia)Riding Mountain National Park, 1,148 sq mi (2,973 sq km), SW Man., Canada, W of Lake Manitoba; est. 1929. A wooded region with small glacial lakes, on the highest part of the Manitoba escarpment, it i...

California Institute of Technology

(Encyclopedia)California Institute of Technology, at Pasadena, Calif.; originally for men, became coeducational in 1970; founded 1891 as Throop Polytechnic Institute; called Throop College of Technology, 1913–20....

Klamath, mountain range, United States

(Encyclopedia)Klamath, mountain range, part of Pacific Coast Ranges extending c.240 mi (368 km) from SW Oregon to NW California. The Klamath Mts. are part of numerous national forest and wildlife preserves and cont...

Berryessa Snow Mountain National Monument

(Encyclopedia)Berryessa Snow Mountain National Monument, 330,780 acres (133,860 hectares), N Calif., est. 2015. Jointly managed by Forest Service and Bureau of Land Management, the monument extends from near sea le...

Saint Gotthard, mountain group, Switzerland

(Encyclopedia)Saint Gotthard sānt gŏtˈhərd, gŏtˈərd [key], mountain group of the Lepontine Alps, S central Switzerland, rising to Pizzo Rotondo (10,472 ft/3,192 m high). The Reuss, Rhine, Ticino, and Rhône ...

Sierra Madre, mountain system, Mexico

(Encyclopedia)Sierra Madre dĕl so͝orˈ [key] is a tumbled, broken mass of uptilted mountains that touch the Pacific coast but form into no clearly defined range. It spreads over S Mexico between the volcanic belt...

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